WordPress is a very popular blogging and content management system (CMS) tool. It is possibly one of the most well known and respected tool with over 4 million* websites using WordPress!

WordPress is an open source project which started in the year 2003, as a blogging tool.

Users are given an intuitive online interface to type, tag with keywords and upload their blogs or articles. The core idea is to help the user by taking over all the effort needed to present the information online, allowing him/her to concentrate on the content of his blog. Users can customize the theme or in other words, the web layout, background colors, font etc to better suit his content or give a more classy and unique look for his blog.

Once the blog is published on a website, there are other features provided by wordpress developer: Typically, when people read articles or blogs, they like to leave their comments. The interface to leave comments also allows authors to manage the comments posted.

Sometimes, authors would like to link to or comment on other blogs that are related to the same topic; these are done by what are called pingbacks and trackbacks. This way, the readers are made aware of the author's comments on other blogs in one single page. The other feature that is very useful is Permalink or Pretty url, where users can specify a human readable and intuitive weblink name instead of machine generated links with numbers and special characters.

As WordPress became one of the default choices for blogging globally, subsequent version releases also came to be used as a CMS tool. The administrative panel provided could be used to customize the web layout around the content. The most important feature being a WYSIWYG (What You See Is What You Get) editor giving the user an idea of how the webpage would actually look in browser window.

Source: http://www.articleblast.com/Web_Development/General/WordPress_-_A_Wizard_in_the_world_of_Blogging_and_Website_designing!/

Absolutely. Most of the blog sites are from wordpress. The available themes there are truly awesome. All you need is to create a logo for your site.